Lune, Lead Archivist

Ward {2} Whenever Lune, Lead Archivist enters the battlefield, search your library for a creature or saga, reveal it, and put it into your hand. {1}{W}{U}: Exile target creature or saga and return it to the battlefield under its owners control. Whenever a saga leaves the battlefield, transform Lune, Lead Archivist.{flavor} “An advantage.” - Lune.